Having approved of, handed over to (6)
I believe the answer is:
passed
'handed over to' is the definition.
I can't judge whether this definition defines the answer.
'having approved' is the wordplay.
I cannot really see how this works, but
'approved' could be 'pass' (I've seen this before) and 'pass' is found within the answer.
The remaining letters 'ed' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'of' is the link.
Can you help me to learn more?
(Other definitions for passed that I've seen before include "'Brought into effect, laws perhaps (6)'" , "Gone" , "Succeeded" , "Handed on; went by" , "Went by - got through" .)